97561055511412 has 6 divisors (see below), whose sum is σ = 170731847144978. Its totient is φ = 48780527755704.

The previous prime is 97561055511379. The next prime is 97561055511443. The reversal of 97561055511412 is 21411555016579.

It can be written as a sum of positive squares in only one way, i.e., 95518682969956 + 2042372541456 = 9773366^2 + 1429116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97561055511412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12195131938923 + ... + 12195131938930.

Almost surely, 2^{97561055511412} is an apocalyptic number.

It is an amenable number.

97561055511412 is a deficient number, since it is larger than the sum of its proper divisors (73170791633566).

97561055511412 is a wasteful number, since it uses less digits than its factorization.

97561055511412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24390263877857 (or 24390263877855 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 52.

The spelling of 97561055511412 in words is "ninety-seven trillion, five hundred sixty-one billion, fifty-five million, five hundred eleven thousand, four hundred twelve".